When it comes to relaxing content, cooking shows are the creme de la creme of easy-watching feel-good TV. Whether a host is taking you on a tour of essential culinary destinations and uncovering the hidden foodie gems of the world, teaching you the history behind a favorite food you take for granted, or competing in a high-stakes cooking contest for the grand prize, there's something about food that takes us back to our comfort zone. There's a reason Food Network's ratings zoomed upwards following 9/11, when viewers turned to easy entertainment for comfort (…